DH 30 Midterm

How many degrees is a Gracey 5/6 cutting edge angled at?

A. 70°

B. 45°

C. 0°

D. 90°

A. 70°

Which of the following correctly describes some of the characteristics of a Gracey 5/6?

A. Extended shank, one cutting blade on each end

B. Straight shank, two cutting edges on each side

C. Straight shank, one cutting edge on each end

D. Extended shank, two cutting edges on each side

C. Straight shank, one cutting edge on each side

Where can a Gracey 5/6 be used?

A. All surfaces of anterior teeth

B. All surfaces of premolars

C. Facial and lingual surfaces of posterior teeth

D. All of the above

D. All of the above

All of the following are open curettage procedures EXCEPT:

A. Modified Widman flap

B. Excisional new attachment procedure (ENAP)

C. Surgical curettage

D. Subgingival curettage

D. Subgingival curettage

Gingival curettage armamentarium:

(What two things are missing?)

1. Mouth mirror

2. Probe

3. Sharpened Gracey 5/6 or BH 1/2

4. Dappen dish

5. Cotton tip applicator

6. 2×2 gauze

Hydrogen peroxide

Sharpening stone

How does a Mini Gracey compare to a standard Gracey?

A. Minis are a quarter of the blade length

B. Minis are half the blade length

C. Minis are a third the blade length

D. None of the above

B. They are half the blade length

How many degrees is a Gracey 11/12 cutting edge angled at?

A. 70°

B. 45°

C. 0°

D. 90°

A. 70°

Where can a Mini Gracey 11/12 be used?

A. Mesial and distal surfaces of anterior teeth

B. Distal, facial, and lingual surfaces of posterior teeth

C. Mesial, facial, and lingual surfaces of posterior teeth

D. A and C only

D. A and C only

How many degrees is a Gracey cutting edge angled at?

A. 70°

B. 45°

C. 0°

D. 90°

A. 70°

Where can a Gracey 15/16 be used?

A. Anterior teeth: mesial and distal surfaces

B. Anterior teeth and premolars: mesial and distal surfaces

C. Posterior teeth: mesial, facial, and lingual surfaces

D. Posterior teeth: distal, facial, and lingual surfaces

C. Posterior teeth: mesial, facial, and lingual surfaces

What are 3 advantages to dental photography?

• Immediate __________

• Patient ________

• _________ _________*

• Immediate documentation

• Patient education

• Professional presentations*

What is dental biofilm?

A. A dense matrix of bacteria that resists the body’s natural antibodies

B. A slimy combination of saliva and residual toothpaste that coats tooth enamel

C. A thin layer of calculus under the gingival margin

D. A protective film that can be inserted into periodontal pockets

A. A dense matrix of bacteria that resists the body’s natural antibodies

T/F: Arestin has no contraindications

False:

• Pregnant or nursing

• Allergy to Tetracycline family

How many American adults develop periodontal disease?

A. Tens of thousands

B. Hundreds of thousands

C. Millions

D. Hundreds

C. Millions

A fulcrum in which the finger rest is established on the opposing arch from the treatment area is called?

Opposite arch fulcrum

Which two short bladed instruments work well in deep narrow anterior pockets:

A. Gracey 5/6

B. Mini Gracey 5/6

C. Gracey 1/2

D. Mini Gracey ½

B and D (The minis)

T/F: During gingival curettage, with a universal curet, the opposite cutting edge is used as if scaling and root planing.

True

Gingival curettage performed using a curet to access the periodontal pocket and remove the pocket lining, connective tissue, Junctional epithelium is termed:

(open or closed curettage?)

Closed curettage

T/F: with an SLR camera, the use of barriers is needed?

False.

SLR camera is the big one that takes pictures from outside the mouth, unlike the intraoral camera that needs barriers

A fulcrum in which the finger of the non-dominant hand serves as a resting point for the dominant hand is called?

Finger on finger fulcrum

Arestin starts working immediately and fights infection and inflammation. The area should be undisturbed for ___ days?

A. 3 days

B. 5 days

C. 7-10 days

D. 14 days

C. 7-10 days

(PPT says 10 days but boards may give a 7-10 day range)

Hypersensitivity Management includes all of the following EXCEPT:

A. Assessment components

B. Educational considerations

C. Treatment hierarchy

D. Reassessment

E. None, they are all part of hypersensitivity management

E. None, they are all part of hypersensitivity management

With an SLR camera, how many teeth should be visible when taking an anterior shot?

A. 4 teeth

B. 8 teeth

C. 10 teeth

D. 12 teeth

D. 12 teeth

Beginner SLR photographers have the most difficulties taking what kind of shot?

A. Anterior shot

B. Buccal shot

C. Mandibular occlusal shot

D. Maxillary occlusal shot

E. C and D only

E. C and D only

The best f-stop setting for an SLR camera is:

A. 10-15

B. 22-32

C. 35-42

D. 1-7

B. 22-32

T/F: automatic focus settings are better to use than manual focusing when utilizing an intraoral camera.

False

T/F: The intraoral wand camera was designed to take one shot of many teeth at a time to maximize the effectiveness of the optical system?

False

T/F: Advanced fulcruming techniques increase tactile information to the clinicians fingers?

False, it decreases sensitivity

T/F: Advanced fulcruming techniques facilitate access to maxillary 2nd and 3rd molars.

True

Opposite arch fulcrums are used to improve access to?

A. Distal side of most posterior tooth

B. Deep pockets

C. Lingual sides

D. None of the above

B. Deep pockets

(Boards question)

One modification made to Gracey instruments to increase effectiveness on root surfaces was to shorten the length of the working end by what percent?

A. 10%

B. 25%

C. 50%

D. 70%

C. 50% (or 1/2)

Mini Gracey curets have a working end that is how much thinner than a standard curet?

A. 10%

B. 25%

C. 15%

D. 50%

A. 10%

T/F: Diamond coated instruments have a working-end design similar to that of a UNC probe.

False - they don’t have working ends

T/F: Dentinal hypersensitivity is a short, sharp, painful reaction that occurs when an area of dentin is subjected to mechanical, thermal, evaporative, osmotic, or chemical stimulus and alleviated upon its removal.

A. The statement is correct but the reasoning is not.

B. The statement is incorrect but the reasoning is correct.

C. Both the statement and the reason are correct and related.

D. Neither the statement or the reason are correct.

C. Both the statement and the reason are correct and related.

(This is the definition of dental hypersensitivity)

Is the pain of hypersensitivity sporadic or constant?

Sporadic

T/F: Chlorhexidine has substantivity.

True - 40%

How many days after gingival curettage will shrinkage and possible recession at margins occur?

A. 3-4 days

B. 6-7 days

C. 10-14 days

D. 48 hours

B. 6-7 days

How many days after gingival curettage will the gingiva present as light pink in color with no BOP?

A. 3-4 days

B. 6-7 days

C. 10-14 days

D. 48 hours

C. 10-14 days

T/F: Gingival curettage does not result in epithelial attachment or gain of short Junctional epithelium.

False - it should be long Junctional epithelium.

(Boards may try to confuse you by saying short Junctional epithelium instead of long)

T/F: Gingival curettage is one of the oldest periodontal treatments for periodontal pockets.

True

(Boards question)